
class AttrStateModel{
  String cate;
  List<AttrState> list;

  AttrStateModel(this.cate, this.list);

  @override
  String toString() {
    return 'AttrStateModel{cate: $cate, list: $list}';
  }
}

class AttrState{
  String title;
  bool checked;

  AttrState(this.title, this.checked);

  @override
  String toString() {
    return 'AttrState{title: $title, checked: $checked}';
  }
}